to do us harm. >> reporter: in the late '60s the fbi director j. edgar hoover seemed determined to destroy dr. king. everyone within the movement's leadership knew it. >> we always operated under the assumption that we were under the microscope and that our telephones were tapped. >> withers marched with dr. king, ate with him, sat in on strategy sessions with leaders of the movement. a known and trusted face, he had access and a camera. withers' daughter is as shocked as anyone. >> out of character for my father. that's not representative of who he was as a man and what he stood for. >> reporter: memphis plans to open annen nest withes museum next month. his photos so powerfully clear but not his motives. >>> meanwhile this morning on "the early show," analysis of last night's primaries and we'll talk with mothers of the two americans still being held in iran. i'm terrell brown. this is the cbs morning news. hi, a number two please? would you like that to hurt now, or later? uh, what? sir, do you want heartburn pain now or later? [ male announcer